According to the study, the contact region between the twist-roller and the shaft is an ellipse. 研究表明，扭輪和傳動(dòng)軸接觸區形狀為一橢圓。
Calcite deposits mainly occur in the carbonatite area and the meta morphosed contact zone around the intrusive rocks. 方解石礦床一般產(chǎn)于碳酸鹽巖地區和侵入巖變質(zhì)接觸帶，受斷裂風(fēng)化淋濾容礦，熱液接觸變質(zhì)作用，由碳酸鹽巖褪色重結晶而形成。
The minerals are disseminated in the schist and hornfelsed schist near the dolerite contact. 這些礦物也浸染在靠近粗玄巖接觸帶的片巖和角巖片巖中。
